Borussia retain an outside chance of winning the Bundesliga title, while they also face Bayern in the final of the DFB Cup on 21 May, but Gündogan, who missed almost the entirety of the 2013/14 campaign with injury, will play no further part in his team's hunt for domestic glory.

His absence is also a major blow to Germany coach Joachim Löw, for whom Gündogan was a starter in four of the reigning world champions' last five EURO 2016 qualifiers and earned the last of his 16 caps in a 2-0 friendly defeat to France last November.

Germany begin their EURO 2016 campaign against Ukraine in Lille on June 12, before further games in Group C against Poland and Northern Ireland.

"Out for the season and the EUROS! Gündogan has dislocated his kneecap in training."

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